Science & Mathematics - 23 October 2006

But no one has tried to get back with me about these problems.
Multiply:
(2√[3] + √[6])(3√[3] – √[6])

Rationalize the denominator:
4____
√[7] – √[5]

2006-10-23 18:33:36 · 7 answers · asked by Tiffany B 1 in Mathematics

2006-10-23 18:31:52 · 2 answers · asked by Victoria M 1 in Biology

The solubility product of a compound of the form XY2 has the value 3.3e–4. What is the molar solubility of XY2?

A) 6.9e–2 M
B) 1.1e–1 M
C) 8.3e–5 M
D) 1.7e–2 M
E) 4.4e–2 M

I got E can anyone else confirm?

2006-10-23 18:29:33 · 1 answers · asked by farxfromxlonelyx 1 in Chemistry

. Perform the indicated operations:
2√[48] + √[27] – 5√[12

2006-10-23 18:28:29 · 4 answers · asked by Tiffany B 1 in Mathematics

√[196x22y6z18]

2006-10-23 18:25:40 · 3 answers · asked by Tiffany B 1 in Mathematics

2006-10-23 18:25:37 · 5 answers · asked by The Apostle 2 in Engineering

You know how on tv and that people shoot a gun into the air above their head like a warning does anyone know if when it comes down it is likely to kill someone

2006-10-23 18:24:59 · 24 answers · asked by abbyabbyabby123 1 in Physics

What do you do when there is a common point where the both the first derivative and second derivative equal 0?

2006-10-23 18:17:05 · 2 answers · asked by Anonymous in Mathematics

How do we know all the layers and how deep each one is and if its solid or liquid? We never sent probes down there, and How do we know the composition and density of the core?

We have'nt even been to the bottom of Mariana Trench yet

2006-10-23 18:16:59 · 4 answers · asked by Scatman 5 in Earth Sciences & Geology

2006-10-23 18:06:04 · 10 answers · asked by CatRhino1 1 in Chemistry

What is the inverse?

2006-10-23 18:03:40 · 4 answers · asked by Anonymous in Mathematics

Hello. I find CFGs interesting, however I am having an extremely difficult time visualizing how to construct them. For example, if I am told (a^m)(b^n)(c^p)(d^q) such that m + n = p + q is the definition for valid strings in the language, how can I convert that to the CFG syntax? I can see from the m+n = p+q condition that the resulting string is going to be something that can be divided equally (ie. even) but I can't see how that would help me. Also, it is possible to choose "nice" strings that are in this language, say aaabbbcccddd because then I can break the string into two rules like:
X--> aXb | e
Y--> cYd | e
Then I assume you just add a start a start line like:
S--> X | Y | e

This is the solution I get from the speically chosen string. I doubt that my CFG above is correct for any string in the language. Can anyone provide some guidance and tips? Thank You so much.

2006-10-23 17:58:11 · 3 answers · asked by mdigitale 7 in Mathematics

Find two consecutive integers such that the square of the sum of the two integers is 11 more than ther smaller integer.

2006-10-23 17:57:38 · 7 answers · asked by Amanda 1 in Mathematics

I mean, where there was no doubt that people existed, because of absolute fact.

2006-10-23 17:57:28 · 5 answers · asked by WillyINCALI 2 in Earth Sciences & Geology

Is there a physics equation to explain bubbles in fluids?

2006-10-23 17:56:01 · 10 answers · asked by Jae G 2 in Physics

When A YDSE (young's double slit experiment) is performed with white light (multi-chromatic). will there be a dark band.
[for more details see lecture 33, 43rd min in the following link.
http://ocw.mit.edu/OcwWeb/Physics/8-02Electricity-and-MagnetismSpring2002/VideoLectures/ ]

2006-10-23 17:53:32 · 3 answers · asked by Anonymous in Physics

show steps... thanks

2006-10-23 17:51:59 · 3 answers · asked by feelinglikeastar 2 in Mathematics

becoz the attraction force between earth & moon is app constant

2006-10-23 17:48:45 · 12 answers · asked by Anonymous in Astronomy & Space

2006-10-23 17:46:39 · 6 answers · asked by jeff g 1 in Mathematics

O2(-2)

1.)How many electrons are in bonding orbitals ?
2.)How many electrons are in anitbonding orbitals ?
3.) What is the bond order of the ion.

2006-10-23 17:43:36 · 1 answers · asked by Anonymous in Chemistry

2006-10-23 17:43:29 · 2 answers · asked by Anonymous in Astronomy & Space

Also what would happen if the left side of your heart pumped faster than the right side?

2006-10-23 17:43:25 · 3 answers · asked by qutiepy9 2 in Biology

hint a map may not help unless you can zoom right in...grin

2006-10-23 17:37:22 · 3 answers · asked by Anonymous in Geography

2006-10-23 17:32:30 · 6 answers · asked by Miss M 4 in Biology

2006-10-23 17:31:37 · 19 answers · asked by Anonymous in Biology

The ring system of the planet Saturn compared to the ring system of the planet Uranus

2006-10-23 17:30:59 · 6 answers · asked by DW 1 in Astronomy & Space

this question has been on my mind for a long time-any ideas?

2006-10-23 17:30:35 · 19 answers · asked by jhendrixwatchtower 2 in Mathematics

A.75
b.7500
c.750,000
d.75 million
e.750 million

2006-10-23 17:29:05 · 4 answers · asked by Anonymous in Astronomy & Space

if i go to school and i asked at least 100 girls if they wanted to go study with me at the library, so i can later ask them out to lunch or coffee, what are the odds that at least 1 of them will say yes?

2006-10-23 17:23:40 · 14 answers · asked by Anonymous in Mathematics

A man pulls a 50kg box at constant speed across the floor. He applies a 200N force at an angel of 30 degrees.

A. Sum the forces in the x-direction. What is the value of the frictional force opposing the motion?

B. Sum the forces in the y-direction. What is the value of the normal force?

2006-10-23 17:23:19 · 7 answers · asked by Greg 2 in Physics